Courtesy of Claudia Valeggia

Claire Stingley (left), a 2012 College graduate, talks with a field assistant and two mothers who are participating in the Fundación ECO’s study on babies and fertility. The Fundacion was founded by two Penn professors in 1999.

2012 College graduate Monika Wasik, the field coordinator for the Chaco Area Reproductive Ecology Program, works with a young child in Argentina.

2012 College graduate Monika Wasik, the field coordinator for the Chaco Area Reproductive Ecology Program, takes measure of a participating girl.